2022ISO 1138:2022 Rubber compounding ingredients — Carbon black — Determination of sulfur content
2012ISO 1138:2007/Amd 1:2012 Rubber compounding ingredients - Carbon black - Determination of sulfur content - Amendment 1: Clarification of digestion temperature in Subclause 3.4.5
2007ISO 1138:2007 Rubber compounding ingredients - Carbon black - Determination of sulfur content